Radiographic follow-up (in the form of posteroanterior and panoramic radiographs) will used to evaluate the patients immediately and 2 and 4 months postoperatively. Patients returned 7 days after surgery for clinical evaluation . The patients will be examined radiographically for accuracy of the reduction, screw positioning, adverse reactions in the vicinity of screw placement, and bone healing. the complications encountered will be recorded by treatment scoring system and treated. The clinical evaluations will be performed by 1 surgeon at each institution.